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arXiv 0902.3739nucl-th
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核能泛函的约束、极限和扩张

Constraints, limits and extensions for nuclear energy functionals

G. Colo'

摘要:

本文在完全自洽的随机相位近似(RPA)下讨论了Skyrme力在中子星和208 Pb巨共振态态研究中的行为。我们指出,明确的相关性之间存在的结果的等振幅和等矢量偶极共振(ISGMR和IVGDR),和确定的量,表征状态方程(EOS)的均匀物质。我们建议RPA的结果,或在某种程度上,提到的EOS参数,被用作约束时,力是适合的。当设想更一般的能量密度泛函的拟合时,该建议也是有效的。我们利用我们的考虑从78个相互作用的大样本中选择有限数量的Skyrme力(10)。

英文摘要:

In the present contribution, we discuss the behavior of Skyrme forces when they are employed to study both neutron stars and giant resonance states in 208Pb within the fully self-consistent Random Phase Approximation (RPA). We point out that clear correlations exist between the results for the isoscalar monopole and isovector dipole resonances (ISGMR and IVGDR), and definite quantities which characterize the equation of state (EOS) of uniform matter. We propose that the RPA results or, to some extent, the mentioned EOS parameters, are used as constraints when a force is fitted. This suggestion can be valid also when the fit of a more general energy density functional is envisaged. We use our considerations to select a limited number of Skyrme forces (10) out of a large sample of 78 interactions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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